Pivoted bender with abutment roller adjustably mounted on vertically inclined bracket



May 10, 1949.

' A. E. L PIVOTED BENDER WITH ABUTMENT ROLLER ADJUSTABLY MOUNTED 0NVERTICALLY INCLINED BRACKET Filed Nov. 7, 1944 Albert E. Lemay InventorAttorney:

Patented May 10, 1949 UNI TED S TATES FATENT OFFICE PIVOTED BENDER WITHABUTMIENT ROLLER ADHUSTABLY MOUNTED N VERTICALLY INCLINE!) BRACKET 1Claim. 1

This invention relates to a metal bending machine, and more particularlyto such a machine adapted to bend metal strips of varying form intoarcuate or circular shapes.

A primary object of this invention is the provision of an improvedbending machine, adapted to be utilized in bending bar or strip metal,in a relatively simple, rapid and efficient manner. An additional objectof this invention is the provision of such a machine provided with animproved removable attachment whereby suitable metal strip forms may bebent.

Still another object is the provision of such a machine adapted to bendsuch stock in a smooth, even and relatively continuous manner, in suchway as to obviate the possibility of breaking or buckling the strips.

Other objects reside in the combinations of elements, arrangements ofparts, and features of construction, all as will be more fully pointedout hereinafter and shown in the accompanying drawings, wherein thereare disclosed various preferred embodiments of this inventive concept.

In the drawings:

Figure 1 is a top plan view of one form of device embodying the instantinventive concept.

Figure 2 is a fragmentary side elevational view of the structure shownin Figure 1.

Figure 3 is an enlarged elevational detail of construction showing anadjustable attachment disposed on the table.

Like reference numerals refer to like parts throughout the several viewsof the drawings.

Having reference now to the drawings, there is shown at 26] a fixedtable or work support, mounted on supporting legs 2|, and preferably ofcircular configuration. Mounted in the center of table is a revolvableplate 22 secured, as by a nut 23, to a rotatable drive shaft 24, drivenfrom any desired source of power. A clip generally indicated at 25comprised of a transversely extending member 26 having a slottedaperture 27 therein and a depending flange 28 is adapted to be securedto the plate 22, as by a bolt 30 engaging in a suitable threadedaperture in the plate.

An end of the stock is disposed beneath the clamp 25, the clamp beingsuitably adjusted by means of the bolt 30 and the slot 21. The shaft 24is rotated prior to the clamping operations until it is adjacent thebending attachment to be described subsequently. The angle iron isdisposed so that it contacts the roller 88 of the said attachment andsubsequent rotation of the shaft 2 moves the plate 22 as well as theclamp 25 and the angle iron for the bending operations.

Angle iron may be readily bent utilizing the machine of the instantinvention, by the use of an attachment disclosed in Figure 3. In thisattachment a triangular support HI is secured to the plate 20, as bybolts H, and has mounted on the hypotenuse thereof a supporting bracket72, adapted to carry a U-shaped clamping member 13 secured thereto, asby bolts M, the legs of the member '53 being provided with threadedapertures through which passes a threaded member '55 and provided withan operating knob '56, its extremity engaging an abutting shoulder ll ofthe bracket E2. The extremity of the bracket 72 has secured thereto, asby means of a bolt 18 and nut W, a roller 80, the periphery of which isbeveled to form a substantially rightangled surface adapted to engage inthe right angle of an angle iron 8 I As the operating knob i6 is rotatedit pushes on the shoulder 11 thereby urging the bracket 12 downwardly.Since the bracket carries the roller 89, it may be adjusted with respectto the plane of the table 20 and also with respect to the revolvableplate 22.

Now, from the foregoing, it will be seen that there is herein provided abending device, and attachments therefor, accomplishing all the objectsof this invention and others, including many advantages of greatpractical utility and commercial importance.

As many embodiments may be made of this inventive concept, and as manymodifications may be made in the embodiments hereinbefore shown anddescribed, it is to be understood that all matter herein is to beinterpreted merely as illustrative and not in a limiting sense.

I claim:

A bending machine for metal stock comprising a support including atable, .a substantially circular plate rotatively journalled on saidtable, a shaft secured to said plate and extending through said tablefor rotating the plate, means adjustably secured to said plate forattaching metal stock to the plate, an angularly disposed bracketsecured to said table, a second bracket having a shoulder and a slot, aroller journalled on said second bracket adjacent said plate, asubstantially U-shaped bracket, seated on said second bracket, pinssecured to said angularly disposed bracket extending through said slotand clampingly engaging said U-shaped bracket, threaded means adjustablyreceived in said U- shaped bracket engaging said shoulder for adjustmentof the second bracket and roller to Number selected positions ofproximity relative to said 3 3 429 p a 1,262,882 ALBERT E. LEMAY.1,693,951 REFERENCES CITED 5 The following references are of record inthe 2,132,626 file of this patent: 2,217,053 UNITED STATES PATENTS21254389 10 2,295,397 Number Name Date 397,712 Fowler Feb. 12, 1889578,416 Nielson et a1 Mar. 9, 1897 Number 682,671 Condon Sept. 17, 190160 710,135 Blake Sept. 30, 1902 15 76,363

Name Date Skinner May 19, 1908 Warner Apr. 16, 1918 Herman et a1. Dec.4, 1928 Booth Apr. 16, 1929 Chamberlin et a1. May 16, 1939 Fischer Dec.5, 1939 Henricson Oct. 8, 1940 Jensen Sept. 2, 1941 Gillespie Sept. 15,1942 FOREIGN PATENTS Country Date France Dec. 21, 1925 Germany Dec. 10,1926

